Artificial limb.



E. 0. MOORE.

ARTIFICIAL LIME. krruuuxon mm In '1 um.

Patented Aug. 25, 1914.

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1, 1 08,462. Patented Aug. 25, 1914.

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Mai/M7 I t w UNITED STATES Prldlfhlhliif Uh .lil li amazon 0. MOORE,

OF'BALTI'MORE, MARYLAND. ASSIGNC'R TO J. HANGER. INC., A CORPORATION OF THE DISTRICT OF COLUMBIA.

ARTIFICIAL LIME.

Specification of Letters Tatent.

Patented Ann. 25, 115914.

Application filed May 7. i814. Serial No. 338,804.

To all whom it may con/can.

Bait known that l. llnnicn C. Moons, a citizen of the United States, residing at Baliilnore, inthe State of Illaryland, have invented new and useful lnipri'ncments in Artificial Limb of which the following is a specification.

My invention relates to artificial legs, and pertains more particularly to the harness for operating; the lower leg: section forwardly .on the knee joint. and lifting some in stepping.

The object of my invention is to produce a harness to be operated by the sl'mulders of the wearer attached to the lower-leg portion of an artificial leg below the knee joint for lifting and moving forward the lower leg in walking.

Another object thereof is to produce means in said harness to obtain a variable direct tug by the shoulder suspenders to more the leg forward on the knee j oint, and to retain the position of the suspenders and overcome the tendency thereof to crawl when roller connections are provided for the suspenders and operating strips.

A further obj cct of my invention is to proride means for slightly binding; the knee joint when the weight of the body is shifted to the opposite leg in walking, and a still further object thereof is to produce a more simple, cheap and eflicient artificial suspemler than has heretofore been attained.

To these ends, my invention includes the combination and arrangement of component parts to be hereinafter described and more particularly pointed out in the claims.

In the accompanying drawings. in which like characters indicate similar parts, Figure 1 is a front elevation of my invention; Fig. 2 is a side View thereof; Fig. 3 is a rear view of the same; Fig. 4 is a detail View of my rocking pivoted bar, and 5 is a. sectional view of the same.

Referring now to the drawings, 1 indicates the thigh section of an artificial limb having a stump socket 2 therein. and 3 designates the lower-leg section, suitably pivoted on the thigh section at t to form a knee joint. I

On each side of the lower-leg section, I rich the flexible strips 5 and 5, said strips being secured at their lower ends to the lower leg section at 5 The upper ends thereof extend above the knee joint, and are free and unattached, and have secured thereon the rigid metal plates 6. livotally mounted on said plates, it provide the crossbars 7. Said cross-bar's are pivoted intermediate their ends on the pins 8, and are provided adjacent each of its outer ends with buttons 9 on which the shoulder straps 10 may be attached I also provide on each side of my artificial leg, an elastic strip 11 and 11 attached at their lower ends at the rearof the lower-leg section at approxitheir upper ends to the side strips 5 and 5. Said elastic strip is normally slightly shorter than the distance between its upper and lower attachments when the side strips 5 and 5' are drawn taut by the tension of the shoulder straps, by which elastic tension the knee/is slightly bent on its pivot and the lower section slightly raised before moving the leg; forward in the act of stepping. 7' The shoulder straps 10 to which. the side strips 5 and .5 are attached may be adjusted by the, backlog 13 to be comfortably worn over the shoulders of the wearer, and it Will be appreciated that the position of the shonldhr straps will not change in the acts of walking, by reason of their fixed attachment on the side strips, and it will be further apparent that the rocking bar 7 pivotally mountedthereon} will permit acornfortable latitude of motion without releasing a direct control of the lower limb through the I1011*llStiO flexible side strips.

As shown in the drawings. a ring A may be inserted in each of the side strips below may be tied with a conneeting thong B.

Having thus described my invention, what I claim as new, and desire to be securedby Letters Patent, is

1. In an artificial leg, the combination with a thigh section and a lower-leg section pivot-ally jointed thereto, of a flexible strip attached at its lower end to the lower-leg section on each side thereof, a rocking cross bar pivoted on the upper free end of each of said flexible strips, intermediate their ends, and shoulder straps attached to the ends of said rocking bar, substantially as described.

2. In an artificial leg, the combination with a thigh section and a lower leg' section pivotally jointed thereto, of a flexible strip attached at its lower end to the lower leg section on each side thereof, shoulder straps mately the calf portion, and attached at the knee joint. and when desired said V attached to the free ends of said side strips, 7 and elastic strips attached to said side strips adjacent the free ends, and attached nt their opposite ends to the rear of the lower-leg: section, substantially described.

3. In an artifieial leg, the combinutinni with a thigh section and a tower-leg section pivotaiiy jointed thereto, of a flexible strip I on each side thereof nttat'hed at their imver ends to the opposite sides of ti'ie-irm'er-ieg i section, a rigid plate secured on the upper free ends of said strips, a rocking cros bar i pivoted on each of said plates, buttons rm the outer ends of said cross bar and simuideiii straps attached to said buttons, substantially as described. i

4, In an artificial leg, the etunhinntion with a thigh. section and a 10 Wer-ieg section i ends to the 0 pivotaiiy jointed therete, of a flexible strip on each side thereof attached at their lower osite sides of the lower-leg section, a roe 'ing ci'oss bar pivoted on the upper end of said side strips, flexible strips attached at their upper ends to said side strips adjacent their upper ends and atr tached at their opposite ends to the rear of the inner-leg section, and shoulder straps attached to the outer ends of stud rocking bars, all adapted to swing said lowerdeg section forward on the joint, substantially as deseriried.

ELMIJR C. MOORE. \Vitnesses 'WM. T. TAYLOR, J12, JOHN '1'. Fisher. 

